Blockchain Developer

**Role Overview:** We are seeking a skilled Web3 blockchain developer with strong experience in Ethereum and decentralized finance (DeFi). The ideal candidate should have expertise in smart contract development, ERC20 tokens, security best practices, and experience integrating with blockchain payment gateways or APIs related to stablecoins.

**Key Responsibilities:**

* Develop and deploy ERC20 smart contracts, including token minting, redemption, and transfer functionalities on Ethereum.

* Design, review, and optimize smart contracts related to crypto lending, escrow, collateral, and repayments.

* Integrate with Circle’s platform for USDC operations, understanding minting and redeeming processes via its APIs.

* Assess stability mechanisms of USDC, ensuring secure handling of minting, redemption workflows, and transactions.

* Collaborate with backend systems (Node.js / Typescript) to facilitate blockchain interactions, manage transactions, and implement error recovery.

* Implement blockchain security best practices, including transaction signing, API key management, and event validation.

* Explore interoperability between Ethereum and other blockchain networks as needed, considering costs and operational efficiency.

* Work closely with frontend and backend teams to embed blockchain transaction logic, wallet management, and transaction tracking.

* Document smart contract code, API workflows, and integration processes to support compliance and audits.

* Ensure platform adherence to relevant regulatory standards for crypto operations.

* Requirements:

* Proven experience in Ethereum smart contract development (Solidity), with a focus on ERC20 standards.

* Experience with DeFi protocols, escrow, lending, or collateral management smart contracts.

* Familiarity with Circle’s platform APIs, especially for USDC minting and redemption workflows, is a strong advantage.

* Hands-on experience with blockchain libraries such as web3.js, ethers.js, or similar.

* Understanding of blockchain transaction costs, network throughput, and interoperability considerations.

* Strong knowledge of smart contract security, auditing, and safe transaction handling.

* Experience working with backend environments like Node.js or Typescript.

* Basic familiarity with Circle’s wallet APIs, webhook integrations, and transaction validation best practices.

* Excellent coding, debugging, and documentation skills.

* Ability to work independently and collaboratively in a dynamic environment.

* 

**Preferred Skills:**

* Experience across multiple blockchain ecosystems (e.g., Ethereum, Polygon, Solana).

* Prior exposure to Circle’s API systems and USDC management workflows.

* Strong security awareness around wallet management, API key handling, and transaction validation.

* Knowledge of DeFi security audits, formal verification, or related security frameworks.

* Contributions to open-source blockchain projects or experience in blockchain community engagement.

• 4+ years of development experience and at least 1 year of smart contract developer experience in solidity
• Solid experience in delivering resilient and secure code in Solidity
• Knowledge and experience of the test-driven development
• Very good understanding of the Blockchain technologies, especially Ethereum
• Familiar with the common Smart Contract vulnerabilities
• Solid understanding about Ethereum infrastructure, e.g. like Gnosis, TheGraph

• Expertise in Typescript, Nodejs and Golang. 
• Prior working experience in Hyperledger 2.x. 
• Strong understanding of blockchain, smart contracts, consensus mechanisms and cryptography. 
• Proficiency in developing Chain codes/Smart Contracts. 
• Experience building front end applications using Angular. 
• Proficient in MongoDB. 
• Experience with Relation databases like MySQL, MSSQL. 
• Write application code, smart contracts, and unit test cases according to the quality guidelines. 
• Work across multiple teams, mentor junior developers and actively participate in code reviews. 
• Co-ordinate with architects to produce technical designs.  
• Skilled in Docker, Kubernetes, Nginx, Git. 
• Knowledge of design patterns and best practices. 
• Document the development process, architecture, and standard components. 
• Awareness of CI/CD pipelines.

Designation - Blockchain developers

Work Mode :- Remote

Qualifications and Experience:

• The Blockchain developer will be responsible for designing, developing and implementing blockchain solutions.
• Candidates must be from Bachelor of Engineering Background.Freshers do not apply
• Minimum 3-5 years of hands on Experience in Blockchain,solidity,RUST,IDO and Token launches is mandatory.
• We are looking Candidates should who can join us immediately or 15 days

Desired Candidate Profile

We are looking for a blockchain developer who will be responsible for designing, implementing, and supporting a distributed blockchain-based network. Primary responsibility will be analyzing requirements, designing blockchain technology around a certain business model, and building and launching a blockchain network.

Essential Skills :

• Strong software development background

• Experience working with large codebases

• Solidity, Web3.js, Ethereum, Truffle, Remix, Smart Contracts, Cryptography, Wallets, Blockchain Fundamentals, DeFi & Banking Domain

• Experience working with open-source projects

• Proficiency in one of the following languages: C++, Java, JavaScript 

• Strong knowledge of common algorithms and data structures

• Familiarity with basic cryptography

• Familiarity with P2P networks

• Strong knowledge of bitcoin-like blockchains / Stable coins

• Strong knowledge of concurrency and writing efficient and safe multithreaded code

• Strong knowledge of STL, C++11 

• Proficiency in the Qt Widgets module 

Responsibilities :

• Research, design, develop, and test blockchain technologies

• Brainstorm and help evaluate applications for new tools and technologies as they continually evolve

• Maintain and extend current client- and server-side applications responsible for integration and business logic

• Be involved in the global blockchain community—work on implementing and integrating the latest improvement proposals

• Document new solutions as well as maintain of existing ones

Arcana is The Storage Layer for Ethereum with a Privacy Stack for developers to build secure and privacy preserving apps. Users care about privacy now more than ever before and it is becoming a first-class citizen in the modern development stack. Arcana makes it easier for apps to be privacy-focused out of the box.

With Arcana’s privacy stack, developers give control of data back to their users. They can easily integrate our SDK with their apps and use our modular feature blocks for Authentication, Identity Management, Encryption, Access Control, and Decentralized Storage. All of which are secured by and verifiable on the blockchain.

Visit http://www.arcana.network/">www.arcana.network to learn more about us, our backers, and our offerings

Arcana is stack of services to help developers build more secure and privacy preserving apps.

We are looking to onboard a lead for our blockchain engineering team. At Arcana we are building our own sovereign EVM compatible chain with its own set of validators. Security, Scalability and Interoperability are the primary goals of the blockchain and we're looking to put together some of the best minds to achieve this. This is a full-time role and completely remote friendly.

• Experience in managing a team of engineers for at least 2+ years.
• Must have significant experience with Geth (Go Ethereum) or equivalent blockchain nodes and p2p
• Must be proficient with Golang
• Deep understanding of Blockchain, Solidity, Assembly, and the EVM
• Experience in standard software practices including clean code, unit tests and CI/CD
• Knowledge of Rust, Javascript, Typescript or Node.js is a plus
• Active member of the dev community will be a plus (e.g. experience contributing to OSS or EIPs)
• Experience in leading and communicating with remote teams

ROLES & RESPONSIBILITIES:

• Responsible for Blockchain evaluation, smart contract development, implementation supporting the digital strategy group initiatives.
• Must have hands-on experience using Solidity.
• Experience in setting up Blockchain nodes and networks.
• Design and develop the architecture of Blockchain Solutions from a systemic standpoint.
• Responsible for creating technical solution architecture for a given business problem.
• Responsible for quality of the application and implements necessary checks and balances via peer review, code scans, automated tests.
• Set the standards for design and development.
• Oversees, maintains,s and supports existing software applications.
• Provide subject matter expertise in reviewing, analyzing, and resolving complex issues.
• Prepare user and systems documentation as needed.
• Design & implement Blockchain solutions which may run on Blockchain platforms and composed of multiple software packages based on Solution Architect.
• Lead a team of Blockchain juniors/trainees.
• Work with product managers and other product teams.
• Well versed in using GitHub.
• Should be flexible to explore different blockchains be it Ethereum, Ripple, Tron, AVA, Multichain, etc